Development of Undersea Linepipe Steel HSL450S

肖鸿光; 贺道中

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Development of Undersea Linepipe Steel HSL450S

更新时间：2026-01-21

- Development of Undersea Linepipe Steel HSL450S
- Special Steel Vol. 28, Issue 6, Pages: 63-64(2007)
- 作者机构：
  
  1. 衡阳华菱钢管(集团)技术中心,衡阳,421001
  2. 湖南工业大学冶金校区,株洲,412000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 June 2007，
  
  Online First：29 December 2022，
  
  Published：29 December 2007
- 稿件说明：
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肖鸿光, 贺道中. Development of Undersea Linepipe Steel HSL450S[J]. Special Steel, 2007, 28(6): 63-64.
DOI：

肖鸿光, 贺道中. Development of Undersea Linepipe Steel HSL450S[J]. Special Steel, 2007, 28(6): 63-64. DOI：

摘要

通过90t EBT电弧炉-100 t LF+VD-喂丝-Φ20mm CC流程开发了Nb-Ti微合金化海底管线管钢HSL450S(%:0.06C、0.40Cr、0.15Mo、0.02Ti、0.05Nb)。经30炉分析得出

]

为35.2×10

-6

]

为78.8×10

-6

。该钢的组织为回火贝氏体-珠光体+多边形铁素体。轧制的Φ102mm×14mm和Φ168.3mm×8.7mm HSL450S钢管的晶粒度为10～11级

机械性能满足海底管线管X60、X65钢级标准要求。

Abstract

The Nb-Ti microalloying undersea linepipe steel HSL450S(0.06C

0.40Cr

0. 15Mo

0.02Ti

0.05Nb) has been developed by 90 t EBT arc funace- 100tLF+VD-wire feeding - Φ220 mm CC flow sheet.It was obtained by analyzing 30 heats that [O

]

was 35.2×10

-6

and [N

]

was78.8×10

-6

.The structure of steel was tempered bainite-pearlite + polygonal ferrite. The mechanical properties of Φ102 mm×14 mm and Φ168.3 mm×8.7 mm tube of steel HSL450S with grain size rating 10～11 met the requirement of standard of for undersea linepipe steel X60 and X65 grade.

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